How do I hide the stHeader element completely?

Using Streamlit
1

There is a large blank placeholder at the top of the page for the main content, I want my content to be displayed from the top of the page, I tried using the following code to hide the stHeader element but it doesn’t work, I don’t know much about CSS, is it my element selection is wrong? Here’s my code:
st.markdown(
“”"

.stApp [data-testid=“stHeader”] {
display: none;
}

“”",
unsafe_allow_html=True,
)

2

Not sure if it’s what you are looking for but for me, it’s work with some css :

    hide_main_content_style = """
                <style>
                .st-emotion-cache-1jicfl2{
                     padding: 0rem 1rem 10rem;
                }
                </style>
                """
    st.markdown(hide_main_content_style, unsafe_allow_html=True)

you can adjust the first (0rem)
(i thing you need to find the correct css for your element instead of st-emotion-cache-1jicfl2)